BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:1
UID:UW-Physics-Event-8617
DTSTART:20240215T190000Z
DTEND:20240215T200000Z
DTSTAMP:20260413T223451Z
LAST-MODIFIED:20240212T172225Z
LOCATION:B343 Sterling Hall
SUMMARY:Stellarators Linking Axisymmetric Mirrors (SLAM)\, Plasma Semi
 nar\, Tony Qian\, Princeton Universtiy
DESCRIPTION:This talk motivates the study of using optimized stellarat
 ors to link large volume axisymmetric mirrors for the purpose of fusio
 n energy. 
\n
\nThere are significant challenges in scaling optimized 
 stellarators to fusion reactors\, in particular the construction of a 
 large volume 3D device which has a breeding blanket integrated with co
 mplex geometry. Meanwhile\, mirrors have large volume and simple coils
 \, but face plasma physics issues due to open field line end loss\, ve
 locity space anisotropy\, MHD stability\, and turbulence (once confine
 ment allows sufficiently high temperature gradients). 
\n
\nWe propose
  a hybrid approach that overcomes challenges of each\, enabled by mode
 rn stellarator optimization. It consists of axisymmetric mirror cells 
 linked by stellarator segments. Most of the plasma volume is in the mi
 rror cells\, where the typical loss cone is replaced by a source cone 
 from the stellarator. The goal is to combine the simple engineering of
  axisymmetric\, linear mirror cells with the good plasma confinement a
 nd stability of stellarators.
\n
\nTwo questions arise: do such flux s
 urfaces exist? If so\, are they MHD stable? We discuss a basic plasma 
 physics experiment that can be built to address these questions using 
 the unique capabilities at UW-Madison. 
URL:https://www.physics.wisc.edu/events/?id=8617
END:VEVENT
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